Cab 20 of El Segundo has a sound that recalls 70s garage rock with monster riffs and jagged vocals that belie their youth (Cab20music.com). The Cosmonauts, from Orange County, play trance-pop, and the two-piece Undercolor from Redondo Beach — guitarist and singer Kaleb Davies with drummer Derrick Marzano — will kick off the show with primal blues-stomp. ER